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Old 05-29-2012, 10:34 AM   #20
pdurrant
The Grand Mouse 高貴的老鼠
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Join Date: Jul 2007
Location: Norfolk, England
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Quote:
Originally Posted by Sil_liS View Post
And the new iPad's screen has the resolution of human eyes with sight deficiencies?
Well, it's 264 ppi, about half the theoretical resolving power. But you could argue that each of those pixels is made up of three sub-pixels, raising the resolution (in one direction) to 792 s-ppi.

I must admit that I couldn't see the pixels myself on a iPad 3, even looking much more closely than 20", perhaps because most of the time the pixels next to each other weren't in high contrast. It wasn't mine, so I didn't have time to look at black text on white background.

However, I suspect I could tell the difference, if I had a direct comparison, between a screen with 264ppi and one with 444ppi. I can certainly tell the difference between printed output that's 300dpi or 600dpi.

Last edited by pdurrant; 05-29-2012 at 10:38 AM.
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